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Need pressure switch for fuel pump

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Old Dec 9, 2004 | 10:59 AM
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Default Need pressure switch for fuel pump

Anyone know of a manufacturer who makes fluid or fuel 12V pressure switches? It needs to electrically open around 5 psi to turn off the pump, then close when the pressure drops to 3-4 psi to cycle it back on. A hydraulic type pressure switch may work too.

Thanks in advance
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Old Dec 9, 2004 | 11:46 AM
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I use a pressure switch on my water injection system on my SC truck.

The system is made by Carroll Supercharging.

http://www.carrollsupercharging.com/

I think you can buy the switches seperately. Send them an e-mail.

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Old Dec 9, 2004 | 02:44 PM
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The pressure switch on 80-82 GM cars for the oil pressure idiot light operates at about the same pressures you need, except the contacts are opposite from yours. Wire it to the NC terminals of your relay and it will do what you need. Cost- about 4 bucks.
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Old Dec 9, 2004 | 03:11 PM
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Hobbs swich from NAPA. About $7, should be in stock. Think it's set at 6psi. I've bought several over the years. Has open/close/common terminal on top for starter bypass.
Gary
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Old Dec 10, 2004 | 12:11 PM
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Thanks for all the info, I'll start checking them out.
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